Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Provide me with an incredibly basic summary of this college.

Roberts Wesleyan University is a private Christian university offering liberal arts and professional programs in Rochester, New York. It was the first educational institution established for Free Methodists in North America. Roberts is accredited by the Middle States Commission on Higher Education, is a member of the Association of Colleges and Universities of the State of New York,[4] the Rochester Area Colleges, the Association of Free Methodist Educational Institutions, the Council of Independent Colleges (CIC),[5] and the Council for Christian Colleges and Universities (CCCU).[6]
Response: Located in Rochester, New York, Roberts Wesleyan University is a private Christian university that offers professional and liberal arts programs and was the first educational institution built for North American Free Methodists.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.

Describe the main function of mitochondria in a cell.
user
Mitochondria are the powerhouses of the cell, generating most of the cell's supply of ATP, which is used as a source of chemical energy.
assistant